Pochiserna:
I have received the correct part from BAV auto recycling. I removed the two bolts in the wheel liner and tried to replace the PDC this way. There is not enough room to get in and replace it this way. There is a metal support that is in the way. You can feel the PDC but cant work on it. I removed the front bumper and replaced it that way. Removing the front bumper is not a difficult job. I followed Twinspoppa DIY on how to remove the front bumper.
http://www.xoutpost.com/bmw-sav-foru...tructions.html
His guide is very helpful. I would just like to make two additional notes. One for when you get to the point where you are pressing down and pulling out on the side of the bumper to remove it from the clamps. As with any plastic clamps it is a little precarious. There are two clamps that you need to press down on for them to release. If they break it is not a big deal and the part can be easily replaced. It is just more time I will add a photo for better explanation. Second note, I un-pluged the fog lamps so I could pull the bumper further away from the car and have more work space. There is a third wire for the PDC sensors that i didnt unplug but you can move it from where it is seated for more space. Other than that it is a simple job and having a second person helps as well.

All said and done it took nearly a month to get the correct parts from the shop but they did eventually get here. It is an easy job to take the bumper off and replace a corner sensor. I do recommend a second set of hands once you get the bumper off. And then you have a working system again!!!!!!!!

If anyone has questions or needs help/explanation on removing the front bumper, parts or replacing a front sensor give me a shout and I would be more than happy to help!